In August, 1993, surveys were made in Palawan, and about 100 species of the Coccoidea, 60 species of the Thysanoptera, 40 species of the Tortricidae, and about 100 species of leaf-mining microlepidoptera were collected. In August, 1994, Mindoro and the Bataan Peninsula were selected for surveys, and the collections include about 80 species of the Coccoidea, 40 species of the Thysanoptera, 20 species of the Tortricidae, and about 80 species of leaf-mining microlepidoptera. The collections have all been brought to the laboratories in Japan for study, and first papers based on the collections will be published during 1995.Before the surveys these insect groups had been known only by fragmentary records in the Philippines. A good number of coccoid species were collected from diverse plants ; especially in the family Diaspididae, many new genera and new species have been found in the collection, and some of them are quite peculiar. About 150 species of the family Gracillariidae, all bred fr
… Moreom leaf-mines, have been found, and about half of them are new species. The tortricid moths obtained, though limited in the number of species, were mostly bred from larvae, thus their host plants and habits are known ; further, they are mostly new to the Philippines. Wide-spread species form a large proportion of the thrips collected, of which the host plants are also known. Thus, information as to host association, useful not only in taxonomy and evolutionary study but also in pest management, has been accumulated in these economically important microarthropods. The flora and fauna of the Philippines enjoy high rates of endemism. In spite of the limited durations and localities the surveys have been successful in showing that the Philippine fauna of some insect groups including diaspidid scale insects and gracillariid moths are worthy of a large-scale study from the viewpoints of biogeography, taxonomy and evolution.得られた標本はすべて日本に持ちかえられ,しかるべき処理を受け,前年度のものとあわせて現在研究が進行している.研究が完了して印刷発表されたものから,研究に使用された標本の半分をフィリピン大学自然史博物館に返還することに合意されており,前年度の一部についてはすでに返還を始めている.フィリピンの大・中型動植物は多くの群について固有率が高いとされてきた.本計画によっても,とくにシロカイガラムシ科については属と種のレベルで,また潜葉性小蛾類では種のレベルで,かなりの未記載形態がある.今回の計画がごく小規模にすぎず,調査期間・地域とも限定されていたにも拘わらず,そのような結果が得られていることは,微小節足動物においてもフィリピンの生物相が特色あるものであり,生物地理学・分類学・進化学等の分野で研究の価値が高いことを示している.一方,フィリピンにおける自然破壊は近年森林伐採と人口増加により急速に進行しており,今回の計画では,バターン半島はもとより,かつて原始の島と称されたパラワン島においても,大規模な自然林は急峻な山腹に残っていて用意には接近でなかった.したがって,多くの生物群については国際的な協力の下組織的な調査が必要であろうし,さらにその調査に基づいた効果的な自然・環境・生物保全の対策を緊急講ずることがこの国においては特に重要であることを,本計画の結論としたい. Less